WO2013143281A1

WO2013143281A1 - One-time password operating method

Info

Publication number: WO2013143281A1
Application number: PCT/CN2012/083828
Authority: WO
Inventors: 陆舟; 于华章
Original assignee: 飞天诚信科技股份有限公司
Priority date: 2012-03-31
Filing date: 2012-10-31
Publication date: 2013-10-03
Also published as: US9413752B2; CN102611556B; US20150304313A1; CN102611556A

Abstract

Disclosed is a one-time password operating method, comprising: when a one-time password detects a valid key, judging the type of a pressed key, if the pressed key is a power-on key, detecting whether a current power-on logo is set, if yes, resetting same, otherwise, setting same and inspecting whether a locking logo is set, if yes, entering an unlocking code interface, otherwise entering an information interface; if the pressed key is a delete key, deleting data at the tail end of a data cache area; if the pressed key is a number key and the one-time password is not in the information interface, storing corresponding data in the data cache area; if the one-time password is in the information interface, judging whether the time for the key being pressed down goes beyond a preset time period, if yes, entering a power-on password modifying interface, otherwise storing corresponding data in the data cache area; if the pressed key is an Enter key and the one-time password is not in the information interface, judging whether the data in the data cache area are correct or meet requirements, if the one-time password is in the information interface, generating a dynamic password and displaying corresponding contents.

Description

A working method of dynamic token

Technical field

[0001] The present invention relates to the field of information security, and in particular, to a method for working with a dynamic token.

Background technique

[0002] In the prior art, a One-time Password (OTP) is a safe and convenient account anti-theft technology, and generates an unpredictable random number combination according to a special algorithm, and each password can be used only once. When the user authenticates, in addition to entering the account number and static password, the user must be required to input a dynamic password. Only through system verification can the user log in or trade normally, thus effectively ensuring the legality and uniqueness of the user identity. The biggest advantage of dynamic tokens is that the passwords used by users are different each time, making it impossible for criminals to fake the identity of legitimate users. Dynamic password authentication technology is considered to be one of the most effective ways to solve user identity authentication. It can effectively prevent multiple network problems such as hacker Trojans stealing user account passwords and fake websites, resulting in loss of user property or data loss. Currently widely used in online banking, online games, telecom operators, e-government, enterprises and other fields.

[0003] In the process of implementing the present invention, the inventor finds that since the current dynamic token display password is 6 bits or 8 bits, when the thief obtains the seed or multiple passwords, the reverse push has the risk of cracking, and Dynamic tokens are easily lost or stolen.

Summary of the invention

In view of the deficiencies of the prior art, in order to effectively prevent the theft of dynamic tokens, loss of dynamic tokens, loss of seed files, and grouping, the present invention proposes a working method of dynamic tokens.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A method for working on a dynamic token, characterized in that, when the dynamic token is checked After detecting that the button flag is set, it includes:

[0007] Step A: Clear the button mark, scan the button, determine the type of the pressed button, if it is the power button, execute step B, if it is the delete button, perform step D, if it is any of the first number key group Press the button to execute step E, if it is any button in the second number key group, execute step F, if it is the confirmation button, execute step G;

[0008] Step B: checking the boot flag, when the boot flag is set, resetting the boot flag, 3⁄4A sleep state; when the boot flag is not set, the boot flag is set, Perform step C;

[0009] Step C: checking the lock flag, if the lock flag is set, setting the status flag to the first preset value, performing step L; if the lock flag is not set, the status flag is set For the second preset value, performing step L;

[0010] Step D: checking the boot flag, when the boot flag is set, deleting one unit data at the end of the data buffer, displaying the corresponding number, performing step L; when the boot flag is not set Sleep state

[0011] Step E: checking the boot flag, when the boot flag is set, saving corresponding data to the data buffer, and displaying corresponding numbers, performing step L; when the boot flag is not set When entering the sleep state;

[0012] Step F: checking the boot flag,

[0013] when the power-on flag is set and the state identifier is a third preset value, determining whether the pressed button is continuously pressed for more than a preset duration, and then the state is The flag is set to the fifth preset value, and step L is performed, otherwise step L is directly executed;

[0014] When the power-on flag is set and the state identifier is not the third preset value, "the corresponding data to the data buffer, and display the corresponding number, perform step L;

[0015] when the boot flag is not set, the sleep state;

[0016] Step G: checking the boot flag,

[0017] When the power-on flag is set, the status identifier is checked, if the status identifier is the first preset value, step H is performed, and if the second preset value is the second step, step I is performed. The third preset value is performed in step J, and if it is the fifth preset value, step K is performed; [0018] when the boot flag is not set, the sleep state;

[0019] Step H: calculating an unlock code verification code, and determining whether the data in the data buffer is consistent with the calculated unlock code verification code, and resetting the lock flag, and setting the status identifier to The fifth preset value, clear the data in the data buffer, perform step L; otherwise clear the data in the data buffer, return to step C;

[0020] Step I: determining whether the data in the data buffer is consistent with the power-on password currently stored in the dynamic token, and then setting the status identifier to a third preset value, and clearing the data cache. The data in the area, step L is performed; otherwise, the data in the data buffer is cleared, the lock flag is set, and the process returns to step C;

[0021] Step J: Calculate the generated dynamic password, display the content corresponding to the dynamic password, perform step L;

[0022] Step K: determining whether the data in the data buffer area meets a preset condition, and replacing the power-on password currently stored in the dynamic token with the data in the data buffer area, and clearing the data cache. The data in the area, the state identifier is set to a third preset value, step L is performed; otherwise, the data in the data buffer area is cleared, and step L is performed;

[0023] Step L: determining whether the button flag is set to be set within a predetermined time, and then returning to step A; otherwise, resetting the power-on flag to enter a sleep state.

[0024] Alternatively,

[0025] A method for operating a dynamic token, comprising: after the dynamic token detects that a button flag is set, the method includes:

[0026] Step a: clear the button mark, the scan button, determine the type of the pressed button, if it is the power button, perform step b, if it is the delete button, perform step d, if it is any of the first number key group Press the button to execute step e, if it is any button in the second number key group, execute step f, if it is the confirmation button, execute step g;

[0027] Step b: checking the boot flag, when the boot flag is set, resetting the boot flag to a sleep state; when the boot flag is not set, setting the boot flag to execute Step c; [0028] Step c: checking the lock flag, if the lock flag is set, setting the status flag to the first preset value, performing step 1; if the lock flag is not set, the status flag is set For the second preset value, perform step 1;

[0029] Step d: checking the opening, when the boot flag is set, checking the status identifier, deleting a unit data at the end of the corresponding buffer area, displaying the corresponding number, performing step 1; When the ambition is not set, the sleep state;

[0030] Step e: checking the boot flag, when the boot flag is set, checking the status identifier, saving the corresponding data to the corresponding buffer area, and displaying the corresponding number, performing step 1; when the boot flag is not When set, the sleep state;

[0031] Step f: checking the boot flag,

[0032] when the power-on flag is set and the state identifier is a third preset value, determining whether the pressed button is continuously pressed for more than a preset duration, and then the state is The flag is set to the fifth preset value, and step 1 is performed; otherwise, step 1 is directly performed;

[0033] When the power-on flag is set and the state identifier is not the third preset value, check the status identifier, save the corresponding data to the corresponding buffer area, and display the corresponding number, perform step 1;

[0034] when the boot flag is not set, the sleep state;

[0035] Step g: checking the boot flag,

[0036] When the power-on flag is set, the status identifier is checked, if the status identifier is the first preset value, step h is performed, and if the second preset value is the second step, step i is performed. The third preset value performs step j, and if it is the fifth preset value, step k is performed;

[0037] when the boot flag is not set, the sleep state;

[0038] Step h: calculating an unlock code verification code, and determining whether the data in the unlock code data buffer is consistent with the calculated unlock code verification code, and then resetting the lock flag, and setting the status flag For the fifth preset value, clear the data in the unlock code buffer, perform step 1; otherwise, clear the data in the unlock code buffer, and return to step c;

[0039] Step i: determining data in the power-on password buffer area and the dynamic token inside Whether the previously stored power-on passwords are consistent, the state identifier is set to a third preset value, and the data in the power-on password buffer area is cleared, and step 1 is performed; otherwise, the data in the power-on password buffer area is cleared. Setting the lock flag, returning to step c;

[0040] Step j: Calculate the generated dynamic password, display the content corresponding to the dynamic password, perform step 1;

[0041] Step k: determining whether the data in the new power-on password buffer area meets the preset value, and then replacing the power-on password currently stored in the dynamic token with the data in the new power-on password buffer area, and clearing the The data in the new power-on password buffer area is set to the third preset value, and step 1 is performed; otherwise, the data in the new power-on password buffer area is cleared, and step 1 is performed;

[0042] Step 1: It is determined whether the button flag is detected to be set within a predetermined time, and then returns to step A; otherwise, the power-on flag is reset to enter a sleep state.

[0043] The invention has the beneficial effects that: the dynamic token can be effectively prevented from being stolen, the loss of the dynamic token is prevented or the user is lost after the seed is lost, and the probability of success of the group is reduced.

DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description of the drawings used in the embodiments or the prior art description will be briefly introduced, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flow chart of a method for working on a dynamic token according to Embodiment 2 of the present invention;

2 is a flow chart of steps 102 to 117 of FIG. 1;

3 is a flow chart of steps 118 to 126 of FIG. 1;

4 is a flow chart of steps 127 to 138 of FIG. 1;

5 is a flow chart of steps 139 to 171 of FIG. 1. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. The embodiments of the present invention, the other embodiments thereof, are all within the scope of protection of the present invention.

Embodiment 1

[0052] In order to effectively prevent the theft of the dynamic token, the loss of the dynamic token, the loss of the seed file, and the possibility of the group, the embodiment of the present invention provides a working method of the dynamic token, where the dynamic token is usually In the sleep state, when a button is pressed, it is woken up, the button flag is set, when the power button is continuously pressed for more than the preset duration, or when there is no button input within a predetermined time, the sleep state is re-entered, and at the same time The status ID is restored to the default value, the current available password retries is saved, and the current status of the lock flag is saved.

[0053] when detecting that the button flag is set, and the dynamic token is not initialized, the dynamic token detects whether the liquid crystal screen and the keyboard are available according to the type of the pressed button;

[0054] When it is detected that the button flag is set and the dynamic token has been initialized, the dynamic token performs the following operations:

[0055] Step S1: Clear the button flag, scan the button, and determine the type of the pressed button. If the power button is used, step S2 is performed. If the button is deleted, step S4 is performed, if any is in the first number key group. Press the key to execute step S5, if it is any of the second number key group, step S6 is performed; if it is the confirmation key, step S9 is performed;

[0056] Specifically, the button may be a button, a touch button, a micro switch, a photoelectric switch, an inductive switch, or the like;

[0057] The power button, the delete button, and the confirmation button may be independent buttons, or may share the same button, or may be any button in the first number button group: [0058] Correspondingly, when the power key is any of the first digital key groups, in this step, when it is determined that any of the first digital key groups is pressed, it is determined whether it is the first Preset button, is to determine whether the time when the button is pressed exceeds the preset duration, and when the preset duration is exceeded, step S2 is performed, when the preset duration is not exceeded, step S5 is performed; otherwise, step S5 is performed;

[0059] When the delete key is any key in the first numeric key group, in this step, when it is determined that the pressed ^ is any change in the first numeric key group, it is determined whether it is the second preset. Pressing the button, determining whether the time when the button is pressed exceeds the preset duration, and executing step S4 when the preset duration is exceeded, and performing step S5 when the preset duration is not exceeded; otherwise, performing step S5;

[0060] When the confirmation key is any of the first numeric key groups, in this step, when it is determined that any of the first numeric key groups is pressed, it is determined whether it is the third preset key, Then, it is determined whether the time when the button is pressed exceeds the preset duration, and when the preset duration is exceeded, step S9 is performed, when the preset duration is not exceeded, step S5 is performed; otherwise, step S5 is performed;

[0061] When the power key and the delete key share a ^^, in this step, when it is judged that the length is long, step S2 is performed, otherwise step S4 is performed; ', '

[0062] When the confirmation key and the power key share a ^^, in this step, when it is determined that the pressed key is the confirmation key, it is determined whether the time when the key is pressed exceeds the preset duration, if yes, step S2 is performed. Otherwise, step S9 is performed;

[0063] When the confirmation key and the delete key share a ^^, in this step, when it is judged that the length is long, step S4 is performed, otherwise step S9 is performed. ' , '

[0064] Preferably, in the embodiment, in order to prevent interference such as static electricity and the jitter of the button itself, the ^^ flag is set, and when the token detects that the ^^ flag is set, the ^^ debounce processing is further included. Specifically, when it is detected that the time when the M is pressed exceeds the preset time after detecting the flag is set, step S1 is performed, otherwise the button flag is cleared, the sleep state is continued, and the waiting button flag is set, wherein the detection is performed. There are a plurality of ways in which the button is pressed, which is not limited herein; [0065] Preferably, in this embodiment, the preset time is 20 亳 seconds;

[0066] The key circuit debounce processing can also be implemented by using a hardware circuit, which can be specifically implemented according to the characteristics of the RS trigger.

[0067] Step S2: checking the boot flag, when the boot flag is set, resetting the boot flag, the sleep state, and performing step S1 after re-detecting that the ^^ flag is set; When the boot flag is not set, the open flag is set, and the next step is performed in sequence;

[0068] Step S3: checking the lock flag, when the lock flag is set, displaying information indicating that the dynamic token is locked, setting the status identifier to the first preset value, displaying information prompting to input the unlock code, and executing Step S15; when the lock flag is not set, the state identifier is set to a second preset value, displaying information prompting to input a power-on password, step S15;

[0069] Step S4: checking the boot flag, when the boot flag is set, deleting one unit data at the end of the data buffer area, displaying the corresponding number, performing step S15, if there is no data in the data buffer area, Then directly executing step S15; when the power-on flag is not set, enter a sleep state, when it is re-detected that the button flag is set, step S1 is performed;

[0070] wherein, in the data buffer, a unit data is used to represent a number, and the unit data is encoded or uncoded;

[0071] The displaying the corresponding number specifically includes: displaying a number corresponding to all the unit data in the data buffer, and displaying the corresponding number as the data plaintext or the symbol "-" or displaying the fixed time data in plain text and then using the symbol "- When the different preset values of the status identifiers correspond to different display modes, the display mode is selected according to the current value of the status identifiers.

[0072] Step S5: checking the boot flag, when the boot flag is set, saving corresponding data to the data buffer area, and displaying corresponding numbers, performing step S15; when the boot flag is not set, a sleep state, when it is re-detected that the flag is set, step S1 is performed;

[0073] wherein [0074] The saving the corresponding data to the data buffer area specifically includes: determining, according to the status identifier, whether the number of unit data in the data buffer area has exceeded a preset number, and saving the first or last preset Unit data of the number, otherwise save all unit data.

[0075] Step S6: checking the boot flag, when the boot flag is set, sequentially performing the next step, when the boot flag is not set, entering a sleep state, when the button flag is detected again After being set, step S1 is performed;

[0076] Step S7: Check the status identifier, when the status identifier is the third preset value, the next step is performed sequentially, otherwise the corresponding data is saved to the data buffer area, and the corresponding number is displayed, and step S15 is performed;

[0077] Step S8: determining whether the time when the button is continuously pressed exceeds a preset duration, if yes, setting the status identifier to a fifth preset value, displaying a message prompting to reset the power-on password, and executing step S15 Otherwise, step S15 is directly executed;

[0078] Step S9: checking the boot flag, when the boot flag is set, sequentially performing the next step, when the boot flag is not set, entering a sleep state, when the button flag is detected again After being set, step S1 is performed;

[0079] Step S10: Check the status identifier, when the status identifier is the first preset value, perform step S11, and when the status identifier is the second preset value, perform step S12, when the status identifier is Step S13 is performed when the third preset value is performed, and step S14 is performed when the status identifier is the fifth preset value;

[0080] Step S11: Calculate and generate an unlock code verification code, and determine whether the data in the data buffer is consistent with the calculated unlock code verification code, and then reset the lock flag, and the status identifier is Set to the fifth preset value, the display prompts the user to reset the power-on password information, clear the data in the data buffer, step S15; otherwise clear the data in the data buffer, return to step S3;

[0081] Step S12: determining whether the data in the data buffer is consistent with the power-on password currently stored by the dynamic token, and then setting the status identifier to a third preset value, and displaying that the prompt has entered the information interface. Information, clear the data in the data buffer, step S15; otherwise set the lock flag, clear the data in the data buffer, return to step S3; [0082] Preferably, the number of available password retries may be set in the dynamic token;

Correspondingly: when the lock flag is not set, determining whether the data in the data buffer is consistent with the power-on password currently stored by the dynamic token, and then setting the status identifier to be the first The preset value is displayed, and the information indicating that the information interface has been entered is displayed, and the number of available password retries is set to an initial value, and the data in the data buffer is cleared, and step S15 is performed; otherwise, the data in the data buffer is cleared, and the calculation is performed. The number of available password retries is reduced by 1, and the result is used as the number of currently available password retries to determine whether the current available password retries is 0. If yes, the lock flag is set, and the process returns to step S3, otherwise the process returns directly to the execution step. S3.

[0084] Step S13: Calculate and generate a dynamic password, and display content corresponding to the dynamic password, and execute step S15.

[0085] Step S14: determining whether the data in the data buffer area is consistent with the preset, then replacing the power-on password stored in the current token with the data in the data buffer, and setting the status identifier to the third Preset value, display information indicating that the information has been entered, clear the data in the data buffer, step S15; otherwise clear the data in the data buffer, step S15;

[0086] Step S15: determining whether the button flag is set to be set within a predetermined time, if yes, performing step S1; otherwise, resetting the power-on flag, entering a sleep state, and when the ^ flag is detected again After being set, step S1 is performed.

[0087] Preferably, the step S10 may further include: performing step S16 when the status identifier is a fourth preset value; performing step S17 when the status identifier is a sixth preset value; When the status identifier is the seventh preset value, step S18 is performed; where the step S16, the step S17, and the step S18 are specifically:

[0088] Step S16: determining whether the data in the data buffer is consistent with the power-on password currently stored by the dynamic token, and then setting the status identifier to a fifth preset value, and displaying a prompt to reset the boot. The information of the password, clear the data in the data buffer, step S15; otherwise clear the data in the data buffer, step S15;

[0089] Correspondingly, when it is determined that the time when the pressed ^^ is continuously pressed exceeds the preset duration in step S8, the method includes: setting the status identifier to a fourth preset value, The prompting to input the information of the current power-on password is performed, and step S15 is performed.

[0090] Step S17: determining whether the data in the data buffer is consistent with the new power-on password, and replacing the power-on password stored in the current dynamic token with the new power-on password, and setting the status identifier to The third preset value displays information indicating that the information has been entered, clears the data in the data buffer, and performs step S15; otherwise, sets the status identifier to a fifth preset value, and displays a prompt to reset the power-on password. Information, clear the data in the data buffer, step S15;

Correspondingly, when it is determined in step S14 that the data in the data buffer meets the preset condition, the data in the data buffer is stored as a new power-on password, and the status identifier is set to a sixth. The preset value displays a message prompting to confirm the reset power-on password, clears the data in the data buffer, and executes step S15.

[0092] Step S18: The state identifier is set to a third preset value, and step S15 is performed.

Correspondingly, after the calculating the dynamic password in the step S13, the method further includes: setting the status identifier to a seventh preset value, and determining whether the ^ identifier is detected before the dynamic password is invalidated. If yes, the process returns to step S1. Otherwise, when the dynamic password is invalid, the status flag is set to a third preset value, and step S15 is performed.

Embodiment 2

In order to effectively prevent the dynamic token from being stolen, the dynamic token is lost, the seed file is lost, and the group is raised, the power button and the delete button share a button and the number buttons 1 to 9 as the first number. The key group and the numeric key 0 are used as the second numeric key group as an example to provide a specific implementation method of the dynamic token. The dynamic token is normally in a sleep state, and is awakened when a button is pressed. And set the button flag, when the power button is continuously pressed for more than the preset duration, or re-enter the sleep state when there is no button input within the predetermined time, and at the same time restore the status flag to the default value, save the current available password retries and The current state of the lock flag. Referring to Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5, when the ^^ flag is detected, the dynamic token performs the following operations:

[0096] Step 101: Clear the button flag, scan the keyboard, determine the type of the pressed button, if it is the power button, go to step 102, if it is any of the number keys 1-9, then execute Step 118, if it is a numeric key 0, step 127 is performed, if it is an OK key, step 139 is performed;

[0097] Step 102: Determine whether the device is initialized, if yes, go to step 106, otherwise execute the next step in sequence;

[0098] Specifically, the process of device initialization is a process of writing user information into a dynamic token.

[0099] Step 103: LCD screen self-test;

[0100] Step 104: Determine whether the button flag is set to be set within the predetermined time, if yes, return to step 101, otherwise execute the next step in sequence;

[0101] Step 105: a sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0102] Step 106: Check whether the boot flag is set, if yes, the next step is performed, otherwise step 110 is performed;

[0103] Step 107: determining whether the time when the power button is pressed exceeds the preset duration, if yes, the next step is performed, otherwise step 109 is performed;

[0104] Preferably, in this embodiment, the preset duration is 2 seconds.

[0105] Step 108: reset the open state, sleep state, and when it is detected that the ^^ flag is set, step 101 is performed;

[0106] Step 109: Delete a unit data at the end of the data buffer area, display the corresponding number, and perform step 116. If there is no data in the data buffer area, skip this step and go straight to step 116;

[0107] wherein, in the data buffer, a unit data is used to represent a number, the one byte data is encoded or uncoded, and the display corresponding number is specifically all units in the display data buffer area. The number corresponding to the data „

[0108] Step 110: It is determined whether the time when the power button is pressed exceeds the preset duration, if yes, the next step is performed, otherwise step 112 is performed;

[0109] Step 111: a sleep state, and when the re-detection of the ^ flag is set, step 101 is performed; [0110] Step 112: Set the boot flag;

[0111] Step 113: Check whether the lock flag is set, if yes, the next step is performed, otherwise step 115 is performed;

[0112] Step 114: Set the status identifier to the first preset value, display the input unlock code interface, and perform step 116;

[0113] Step 115: Set the status identifier to a second preset value, and display an input power-on password interface;

[0114] Step 116: Determine whether the button flag is set to be set within the predetermined time, and then return to step 101, otherwise execute the next step in sequence;

[0115] Step 117: reset the power-on flag, sleep state, and when the re-detection flag is set, perform step 101;

[0116] Step 118: Determine whether the device is initialized, if yes, go to step 122, otherwise execute the next step in sequence;

[0117] Step 119: Display the corresponding number;

[0118] Step 120: Determine whether the button flag is set to be set within the predetermined time, and then return to step 101, otherwise execute the next step in sequence;

[0119] Step 121: a sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0120] Step 122: Check whether the boot flag is set, if yes, go to step 124, otherwise execute the next step in sequence;

[0121] Step 123: The sleep state, and when the re-detected ^ flag is set, step 101 is performed;

[0122] Step 124: Save the corresponding data to the data buffer area, and display the corresponding number;

[0123] Preferably, in this embodiment, when the status identifier is a second preset value or a fourth preset value or a fifth preset value or a sixth preset value, determining unit data in the data buffer area Whether the number of the number has exceeded six, is to save the first or last 6 unit data, otherwise save all unit data; when the status identifier is the first preset value, determine the unit data in the data buffer area Whether the number is more than 8, is to save the first or last 8 Unit data, otherwise save all unit data;

[0124] the display corresponding number is specifically a number corresponding to all unit data in the display data buffer area;

[0125] wherein, when the corresponding number is displayed, the plain text may be displayed or replaced by a symbol such as "-" or "*", or the plaintext is displayed after a period of time, and the plaintext is replaced with a symbol such as "-" or "*". When different status indicators adopt different display modes, the display mode is selected according to the status identifier.

[0126] Step 125: Determine whether the button flag is set to be set within the predetermined time, if yes, return to step 101, otherwise execute the next step sequentially;

[0127] Step 126: reset the open state, ii sleep state, and when the re-detected flag is set, perform step 101;

[0128] Step 127: Determine whether the device is initialized, if yes, go to step 131, otherwise execute the next step in sequence;

[0129] Step 128: Display the number 0;

[0130] Step 129: determining whether the button flag is set to be set within the predetermined time, if yes, returning to step 101, otherwise executing the next step sequentially;

[0131] Step 130: a sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0132] Step 131: Check whether the boot flag is set, if yes, go to step 133, otherwise execute the next step in sequence;

[0133] Step 132: a sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0134] Step 133: Check the status identifier, and if the status identifier is the third preset value, perform step 135, otherwise execute the next step in sequence;

[0135] Step 134: save the corresponding data to the data buffer, and display the corresponding number, perform step 137;

[0136] Specifically, the specific method of this step is the same as step 124, and details are not described herein again. [0137] Step 135: determining whether the time when the numeric key 0 is pressed exceeds the preset duration, if yes, the next step is performed, otherwise step 137 is performed;

[0138] Step 136: Set the status identifier to the fourth preset value, display the modified power-on password interface, and perform step 137;

[0139] Step 137: determining whether the button flag is set to be set within the predetermined time, if yes, returning to step 101, otherwise executing the next step sequentially;

[0140] Step 138: reset the open state, sleep state, and when it is detected that the ^^ flag is set, step 101 is performed;

[0141] Step 139: Determine whether the device is initialized, if yes, go to step 143, otherwise execute the next step in sequence;

[0142] Step 140: Display preset information;

[0143] Specifically, in this embodiment, the preset information is “successful”.

[0144] Step 141: Determine whether the button flag is set to be set within the predetermined time, if yes, go to step 101, otherwise execute the next step in sequence;

[0145] Step 142: The sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0146] Step 143: Check whether the boot flag is set, if yes, go to step 145, otherwise execute the next step in sequence;

[0147] Step 144: The sleep state, and when the re-detection of the ^ flag is set, step 101 is performed;

[0148] Step 145: Check the status identifier, if the status identifier is the third preset value, perform step 146. If the status identifier is the second preset value, perform step 149, if the status identifier is If the status identifier is the fourth preset value, step 157 is performed, and if the status identifier is the fifth preset value, step 160 is performed, if the status identifier is For the sixth preset value, step 163 is performed, if the status identifier is the seventh preset value, step 166 is performed;

[0149] Step 146: Calculate and generate a dynamic password, set the status identifier to a seventh preset value, and display content corresponding to the dynamic password. [0150] Specifically, in this embodiment, the dynamic token calculation generates a 6-bit dynamic password, and the calculation generates a dynamic password, which may be based on a time factor (or an event factor) and pre-stored in the dynamic token. The static factor in the dynamic password is generated, or the dynamic password is generated according to the time factor (or event factor), the data in the data buffer, and the static factor pre-stored in the dynamic token, which is not limited herein;

[0151] Preferably, in the embodiment, the displaying corresponding data is specifically displaying the first 4 digits of the dynamic password, and the last 2 digits are replaced by the symbol "-";

[0152] Further, a time bar may also be displayed for indicating the remaining effective time of the current dynamic password.

[0153] Step 147: Determine whether the button flag is set when the dynamic password is valid, and then return to step 101, otherwise execute the next step when the dynamic password fails.

[0154] Step 148: The status identifier is set to a third preset value, the information interface is displayed, and step 167 is performed;

[0155] Step 149: Calculate the generated unlock code verification code, and determine whether the data in the data buffer is consistent with the unlock code verification code, and then execute the next step sequentially, otherwise step 155 is performed;

[0156] Specifically, the dynamic token is calculated and generated according to a static factor and a time factor (or an event factor), or according to a static factor, a time factor (or an event factor), and data in a data buffer. An 8-bit unlock code verification code, the three unlock code ^ iE codes respectively correspond to a previous time factor of the current time factor, a current time factor, a subsequent time factor of the current time factor or a current event factor, and a subsequent adjacent event Factor, event factor of the next interval;

[0157] Further, whether the corresponding number in the data buffer is consistent with the unlock code is specifically the same as any one of the three unlock code verification codes generated by the dynamic token calculation.

[0158] Step 150: Clear the data in the data buffer, reset the lock flag, set the status flag to the fifth preset value, display the set new power-on password interface, and perform step 167;

[0159] Step 151: Determine whether data in the data buffer is stored in the dynamic token. The stored power-on passwords are the same, if yes, go to step 156, otherwise execute the next step in sequence;

[0160] Step 152: Clear the data in the data buffer area, calculate the current password retry count minus 1, and the result is the number of available password retry times;

[0161] Specifically, in this embodiment, if the step is performed for the first time, the initial value of the current password retry count is 6, otherwise the current password retry count is calculated when the step is executed last time. The number of available password retries.

[0162] Step 153: Determine whether the number of available password retries is 0, if yes, set the lock flag, step 154 is performed in sequence, otherwise step 154 is directly executed;

[0163] Step 154: prompting the power-on password error and the number of available password retries, step 155 is performed in sequence;

[0164] Step 155: Clear the data in the data buffer, return to step 113;

[0165] Step 156: Clear the data in the data buffer, set the status identifier to the third preset value, display the information interface, and perform step 167;

[0166] Step 157: determining whether the data in the data buffer is consistent with the power-on password stored in the dynamic token, if yes, the next step is performed, otherwise step 159 is performed;

[0167] Step 158: Clear the data in the data buffer, set the status flag to the fifth preset value, display the setting of the new power-on password interface, and perform step 167;

[0168] Step 159: Clear the data in the data buffer, prompting the power-on password error, and executing step 167;

[0169] Step 160: determining whether the data in the data buffer area meets the preset, then executing the next step in sequence, otherwise performing step 162;

[0170] Preferably, in this embodiment, the data in the data buffer meets the preset frfr, and the data in the data buffer corresponds to 6 digits 0-9.

[0171] Step 161: Clear the data in the data buffer, store the data input by the user as P1, set the status identifier to the sixth preset value, display the confirmation of the new power-on password interface, and execute step 167;

[0172] Step 162: Clear the data in the data buffer, prompting to modify the power-on password failed, step 167; [0173] Step 163: Determine whether the data in the data buffer area is the same as the PI, if yes, go to step 165, otherwise execute the next step in sequence;

[0174] Step 164: Clear the data in the data buffer area, prompting to modify the power-on password fails, setting the status identifier to the fifth preset value, displaying the setting a new power-on password interface, and performing the steps

167;

[0175] Step 165: Clear the data in the data buffer area, replace the power-on password stored in the dynamic token with the P1, set the status identifier to the third preset value, display the information interface, and perform step 167;

[0176] Step 166: Set the status identifier to a third preset value, and display an information interface.

[0177] Step 167: Determine whether the ^^ flag is set to be set within a predetermined time, and then return to step 101, otherwise execute the next step in sequence;

[0178] Step 168: reset the open state, ii sleep state, and execute step 101 after the re-detected flag is set.

[0179] Embodiment 3

[0180] In order to effectively prevent the dynamic token from being stolen, the dynamic token is lost, the seed file is lost, and the group is raised, the embodiment of the present invention provides another dynamic token working method, where the dynamic token is used. Normally in the sleep state, wake up when a button is pressed, set the button flag, re-enter the sleep state when the power button is continuously pressed for more than the preset duration, or when there is no button input within the predetermined time. Restores the status ID to the default value, saves the current number of available password retries, and the current status of the lock flag.

[0181] when detecting that the button flag is set, and the dynamic token is not initialized, the dynamic token detects whether the liquid crystal screen and the keyboard are available according to the type of the pressed button;

[0182] When it is detected that the button flag is set and the dynamic token has been initialized, the dynamic token performs the following operations:

[0183] Step 201: Clear the button flag, scan the button, determine the type of the pressed button, if it is the power button, go to step 202, if it is the delete button, go to step 203, if it is the number button, go to step 204, if Steps 206 are performed for confirming the key; [0184] Preferably, in this embodiment, in order to prevent interference such as static electricity and the jitter of the button itself from being set, when the token detects that the ^: flag is set, the button debounce processing is further included. Specifically, when it is detected that the button is pressed, it is determined whether the time when the button is pressed exceeds the preset time, then step S1 is performed, otherwise the ^^ flag is cleared, the sleep state is continued, and the waiting button flag is set, wherein the detection is performed. There are a plurality of ways in which the button is pressed, which is not limited herein;

[0185] Preferably, in this embodiment, the preset time is 20 亳 seconds.

[0186] The key circuit debounce processing can also be implemented by using a hardware circuit, which can be specifically implemented according to the characteristics of the RS trigger.

[0187] Step 202: Check the boot flag,

[0188] When the power-on flag is set, the power-on flag is reset, enters a sleep state, and when it is detected that the ^^ flag is set, step 201 is performed;

[0189] When the boot flag is not set, the boot flag is set, step 203 is performed;

[0190] Step 203: Check whether the lock flag is set. If yes, the information indicating that the dynamic token is locked is displayed, and the status identifier is set to the first preset value, and the information indicating that the unlock code is prompted to be displayed is performed, and step 212 is performed; otherwise, Setting the status identifier to a second preset value, displaying information prompting to input a power-on password, performing step 212;

[0191] Step 204: Check the boot flag, when the boot flag is set, check the status identifier, delete a unit data at the end of the corresponding buffer area, display the corresponding number, and perform step 212, if the corresponding buffer area If there is no data, step 212 is performed directly; when the power-on flag is not set, the sleep state, when it is detected that the button flag is set, step 201 is performed;

[0192] Specifically, the checking the status identifier, deleting a unit data at the end of the corresponding buffer area, includes:

[0193] checking the status identifier, if it is the first preset value, deleting one unit data at the end of the unlock code buffer; if it is the second preset value or the fourth preset value, deleting a unit at the end of the power-on password buffer area Data; if it is the fifth preset value, delete one unit data at the end of the new power-on password buffer; if it is the sixth preset value, delete and confirm the new power-on password cache. a unit of data at the end of the zone; if not, it is not processed;

[0194] wherein, in the data buffer, a unit data is used to represent a number, and the unit data is encoded or uncoded;

[0195] The displaying the corresponding number specifically includes: displaying a number corresponding to all the unit data in the data buffer, and displaying the corresponding number as the data plaintext or the symbol "-" or displaying the fixed time data in plain text and then using the symbol "- When the different preset values of the status identifiers correspond to different display modes, the display mode is selected according to the current value of the status identifiers.

[0196] Step 205: Check the boot flag, when the boot flag is set, check the status identifier, save the corresponding data according to the key value of the button to the corresponding buffer area, and perform step 212; when the boot flag is not When set, in the sleep state, when it is re-detected that the button flag is set, step 201 is performed;

[0197] Specifically, the checking status identifier, saving the corresponding data according to the key value of the button to the corresponding buffer area includes: checking the status identifier, and if the first preset value is, saving the corresponding data to the unlock code buffer area; The second or fourth preset value saves the corresponding data to the power-on password buffer area; if it is the fifth preset value, the corresponding data is saved to the new power-on password buffer area; if it is the sixth preset value, the corresponding data is saved to confirm the new boot. Password buffer; if it is other, it will not be processed;

[0198] The saving the corresponding data to the corresponding data buffer area specifically includes: determining, according to the status identifier, whether the number of unit data in the corresponding buffer area has exceeded a preset number, and saving the first or last pre- Set the number of unit data, otherwise save all unit data.

[0199] Step 206: Check the boot flag, when the boot flag is set, check the status identifier, and when the status identifier is the third preset value, determine the time when the button is continuously pressed. If the preset duration is exceeded, the status identifier is set to the fifth preset value, and the information indicating that the power-on password is reset is displayed, and step 212 is performed. Otherwise, step 212 is directly performed, and when the status identifier is not the third When the preset value is saved, the corresponding data is saved to the corresponding buffer area, and the corresponding number is displayed, and step 212 is performed; when the power-on flag is not set, the sleep state is entered, and when the button flag is re-detected, the step is performed. 211; [0200] Specifically, when the status identifier is not the third preset value, saving the corresponding data to the corresponding buffer area includes: if the first preset value is, saving the corresponding data to the unlock code buffer area; The second or fourth preset value saves the corresponding data to the power-on password buffer area; if it is the fifth preset value, the corresponding data is saved to the new power-on password buffer area; if it is the sixth preset value, the corresponding data is saved to confirm the new boot. Password buffer; if it is other, it will not be processed.

[0201] Step 207: Check the boot flag, when the boot flag is set, check the status identifier, and when the status identifier is the first preset value, perform step 208, when the status identifier is Step 209 is performed when the second preset value is performed, and step 210 is performed when the status identifier is the third preset value; and step 211 is performed when the status identifier is the fifth preset value; Bit, in the sleep state, when it is re-detected that the button flag is set, step 201 is performed;

[0202] Step 208: Calculate and generate an unlock code verification code, and determine whether the data in the unlock code buffer area is consistent with the calculated unlock code verification code, and then reset the lock flag, and set the status flag to The fifth preset value, displaying information prompting the user to reset the power-on password, clearing the data in the unlock code buffer area, performing step 212; otherwise clearing the data in the unlock code buffer area, returning to step 203;

[0203] Specifically, the method for calculating the unlock code verification code is the same as the method for calculating the unlock code verification code in the second embodiment, and details are not described herein again.

[0204] Step 209: It is determined whether the data in the power-on password buffer area is consistent with the power-on password currently stored by the dynamic token, and the status identifier is set to a third preset value, and the prompt information has been entered. Interface information, clear the data in the power-on password buffer, step 212; otherwise set the lock flag, clear the data in the power-on password buffer, return to step 203;

[0205] Preferably, the number of available password retries may be set in the dynamic token;

[0206] Correspondingly: when the lock flag is not set, determining whether the data in the power-on password buffer is consistent with the power-on password currently stored by the dynamic token, and then setting the status identifier to The third preset value displays information indicating that the information interface has been entered, and sets the number of available password retry times to an initial value, clears the data in the power-on password buffer area, and performs step 212; otherwise, clears the power-on password buffer area. Data, calculation office The number of available password retries is reduced by 1, and the result is used as the number of currently available password retries to determine whether the current available password retries is 0. If yes, the lock flag is set, and the process returns to step 203. Otherwise, the process returns directly to step 203. .

[0207] Step 210: Calculate the generated dynamic password, display the content corresponding to the dynamic password, and perform step 212;

[0208] Specifically, the method for calculating the dynamic password is the same as the method for calculating the dynamic password in the second embodiment, and details are not described herein again.

[0209] Step 211: determining whether the data in the new power-on password buffer area meets a preset condition, and replacing the power-on password stored in the current token with the data in the new power-on password buffer area, where the status is The identifier is set to the third preset value, the information indicating that the information interface has been entered is displayed, the data in the new power-on password buffer area is cleared, and step 212 is performed; otherwise, the data in the new power-on password buffer area is cleared, and step 212 is performed;

[0210] Step 212: Determine whether the button flag is detected to be set within a predetermined time, if yes, execute step 201, otherwise, reset the boot flag, enter a sleep state, and when the ^ flag is detected again After being set, step 201 is performed.

[0211] Preferably, the step 207 may further include: performing step 213 when the status identifier is a fourth preset value; performing step 214 when the status identifier is a sixth preset value; When the status identifier is the seventh preset value, step 215 is performed; where the step 213, step 214, and step 215 are specifically:

[0212] Step 213: Determine whether the data in the power-on password buffer area is consistent with the power-on password currently stored by the dynamic token, and then set the status identifier to a fifth preset value, and display a prompt to reset the power-on password. For clearing the data in the power-on password buffer, go to step 212; otherwise, clear the data in the power-on password buffer, go to step 212;

[0213] Correspondingly, when it is determined that the pressed time of the pressed ^^ is more than the preset duration, the method includes: setting the status identifier to a fourth preset value, displaying the prompt input For the current power-on password, go to step 212.

[0214] Step 214: Determine whether the data in the power-on password buffer area is consistent with the new power-on password, and replace the power-on password stored in the current dynamic token with the new power-on password, and set the status identifier to The third preset value, indicating that the prompt has entered the information If the information in the interface is cleared, the data in the power-on password buffer area is cleared, and step 212 is performed; otherwise, the status identifier is set to the fifth preset value, and the information indicating that the power-on password is reset is displayed, and the confirmation in the power-on password buffer area is cleared. Data, performing step 212;

[0215] Correspondingly, when it is determined in step 211 that the data in the new power-on password buffer area meets the preset condition, the data in the new power-on password buffer area is stored as a new power-on password, and the status identifier is set to sixth. The preset value displays a message prompting to confirm the reset power-on password, and clears the data in the password buffer area, and step 212 is performed.

[0216] Step 215: Set the status identifier to a third preset value, and perform step 212.

[0217] Correspondingly, after the calculating the dynamic password in the step 210, the method further includes: setting the status identifier to a seventh preset value, and determining whether the button identifier is detected before the dynamic password is invalidated. If yes, the process returns to step 201. Otherwise, when the dynamic password is invalid, the status flag is set to a third preset value, and step 212 is performed.

[0218] Specifically, in this embodiment, the unlock code buffer area and the boot code buffer area use the same storage area. In addition, there may be other buffer sharing modes, such as the unlocking code buffer area and the new boot code buffer area sharing a storage area.

The above description is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A working method of a dynamic token, characterized in that, after the dynamic token detects that a button flag is set, the method includes:

(Step A) Clear the button mark, scan the button, and judge the type of the pressed button. If it is the power button, go to step B. If it is the delete button, go to step D. If it is any button in the first number button group, Step E is performed, if any key in the second number key group is executed, step F is performed, and if it is a confirmation key, step G is performed;

(Step B) checking the boot flag, when the boot flag is set, resetting the boot flag, 3⁄4A sleep state; when the boot flag is not set, setting the boot flag, performing steps C;

(Step C) checking the lock flag, if the lock flag is set, setting the status flag to the first preset value, performing step L; if the lock flag is not set, the status flag is set to Two preset values, performing step L;

(Step D) checking the boot flag, when the boot flag is set, deleting a cell data at the end of the data buffer, displaying the corresponding number, performing step L; when the boot flag is not set, sleeping State

(Step E) checking the open L, when the open L is set, saving the corresponding data to the data buffer, and displaying the corresponding number, performing step L; when the boot flag is not When set, enters the sleep state;

(Step F) checking the boot flag,

When the power-on flag is set and the state identifier is a third preset value, it is determined whether the pressed button is continuously pressed for more than a preset duration, and the state identifier is set to The fifth preset value, step L is performed, otherwise step L is directly executed; when the power-on flag is set and the state identifier is not the third preset value, the corresponding data is saved to the data buffer area, and Display the corresponding number, perform step L; when the power-on flag is not set, the sleep state; (Step G) checking the boot flag,

When the power-on flag is set, the status indicator is checked. If the status identifier is the first preset value, step H is performed. If the second preset value is the second step, step I is performed. The value is performed in step J, and if it is the fifth preset value, step K is performed;

When the boot flag is not set, the sleep state;

(Step Η) calculating an unlock code verification code, and determining whether the data in the data buffer is consistent with the calculated unlock code verification code, and resetting the lock flag to set the status flag to the fifth Preset value, clear the data in the data buffer, perform step L; otherwise clear the data in the data buffer, return to step C;

(Step 1) determining whether the data in the data buffer is consistent with the power-on password currently stored in the dynamic token, and then setting the status identifier to a third preset value, and clearing the data buffer. Data, perform step L; otherwise clear the data in the data buffer, set the lock flag, return to step C;

(Step J) calculating a dynamic password, displaying the content corresponding to the dynamic password, performing step L;

(Step Κ) determining whether the data in the data buffer area is consistent with the preset, replacing the power-on password currently stored in the dynamic token with the data in the data buffer area, and clearing the data in the data buffer area. Set the status identifier to a third preset value, and perform step L; otherwise, clear the data in the data buffer area, and perform step L;

(Step L) It is judged whether the button flag is detected to be set within a predetermined time, and if yes, return to the execution step Α; otherwise, the power-on flag is reset to enter a sleep state.

The method according to claim 1, wherein when the dynamic token detects that the button flag is set, the method further comprises: determining whether the dynamic token has been completed Initialization, yes, step A is performed, otherwise the dynamic token detects whether the LCD screen and the button are available according to the type of the pressed button.

The method according to claim 1, wherein when the dynamic token determines that the pressed button is the power button, the method further comprises: determining whether the time when the power button is continuously pressed exceeds The preset duration is, then step B is performed, otherwise step 0 is executed.

The method according to claim 1, wherein the dynamic token is set with the number of available password retries, and when the dynamic token enters a sleep state, the status identifier is restored to a default value. Saving the current number of available password retries and the status of the lock flag, and performing step A when it is re-detected that the button flag is set; correspondingly, in step I:

When it is determined that the data in the data buffer is consistent with the power-on password currently stored in the dynamic token, the method further includes: setting the number of available password retries to an initial value; and determining that the data buffer is in the buffer When the data is inconsistent with the power-on password currently stored in the dynamic token, the method includes: clearing data in the data buffer, calculating the number of available password retries minus 1, and determining the number of retries for the currently available password. Whether the number of currently available password retries is 0, if yes, the lock flag is set, step L is performed, otherwise step L is directly executed;

Wherein, in the step D, when the power-on flag is set, if there is no data in the data buffer, step L is directly performed;

Denoting a number in the data buffer with a unit data, the unit data being encoded or uncoded;

The saving the corresponding data to the data buffer area specifically includes: determining, according to the status identifier, whether the number of unit data in the data buffer area has exceeded a preset number, Saving the first or last preset number of unit data, otherwise saving all the unit data; the displaying the corresponding number specifically includes: displaying the number corresponding to all the unit data in the data buffer area, and displaying the corresponding number as the data plaintext Or the symbol "-" or the fixed time data plaintext is displayed first, and the data plaintext is replaced by the symbol "-". When different preset values of the state identifier correspond to different display modes, the current value according to the state identifier is specifically determined. Select the display method.

5. The method of claim 1 wherein:

The calculating the unlock code includes: the dynamic token is calculated according to a static factor and a dynamic factor thereof, or according to the data in the data buffer and the internal static factor and the dynamic factor, and is calculated by using a preset algorithm. Generating an unlock code of one or more preset bit lengths, where the dynamic factor is a time factor or an event factor; when generating an unlock code, the dynamic factor is a current dynamic factor; when generating multiple unlock codes 驺When the code is ^, the dynamic factor is a plurality of dynamic factors with the current dynamic factor as the midpoint or starting point;

Determining whether the data in the data buffer is consistent with the calculated unlock code verification code is: determining whether the data in the data buffer is the same as the one unlock code or whether the multiple unlock code is Any one of ^ is the same.

6. The method of claim 1 wherein:

The calculating the dynamic password specifically includes: the dynamic token according to a dynamic factor and a static factor pre-stored in the dynamic token, or according to a dynamic factor, data in the data buffer, and pre-stored in the The static factor in the dynamic token generates a dynamic password of length 6 bits, wherein the dynamic factor is a time factor or an event factor;

The displaying the content corresponding to the dynamic password is specifically displaying the dynamic port The first 4 digits of the order, the next 2 digits are replaced by the symbol "-".

The method according to claim 1, wherein the step G further comprises: performing step M when the status identifier is a fourth preset value, where the step M comprises: determining the Whether the data in the data buffer is consistent with the power-on password currently stored by the dynamic token, and the state identifier is set to a fifth preset value, and the data in the data buffer is cleared, and step L is performed; otherwise Clearing the data in the data buffer, performing step L;

Correspondingly, when it is determined in step F that the pressed time is continuously pressed for more than the preset duration, the method includes: setting the status identifier to a fourth preset value, and executing step 1_

The method according to claim 1, wherein the step G further comprises: performing step N when the status identifier is a sixth preset value, where the step N specifically includes:

Determining whether the data in the data buffer is consistent with the new power-on password, and replacing the power-on password stored in the current dynamic token with the new power-on password, and setting the state identifier to a third preset value. Clearing the data in the data buffer, performing step L; otherwise clearing the data in the data buffer, setting the status identifier to a fifth preset value, performing step L;

Correspondingly, when it is determined that the data in the data buffer area meets the preset condition, the data in the data buffer area is stored as a new power-on password, and the status identifier is set to a sixth preset value. , clear the data in the data buffer, and perform step L.

9. The method according to claim 1, wherein in the step G The method further includes: performing the step o when the status identifier is the seventh preset value, where the step O specifically includes: setting the status identifier to a third preset value, performing step L; correspondingly, the step After the calculating the dynamic password, the method further includes: setting the status identifier to a seventh preset value, determining whether the button identifier is set before the dynamic password expires, and returning to step A. Otherwise, when the dynamic password fails, the status identifier is set to a third preset value, and the steps are performed.

10. The method according to claim 1, wherein when the dynamic token detects that the button flag is set, the button debounce processing is further included, specifically:

When it is detected that the button is pressed and the time when the button is pressed exceeds the preset time, step A is performed, otherwise the button flag is cleared, the sleep state is entered, and the wait for the ^^ flag is set.

(Step a) Clear the button mark and scan button to judge the type of the pressed button. If it is the power button, execute step b. If it is the delete button, execute step d. If it is any button in the first number button group, Step e is performed, if it is any of the second number key group, step f is performed, and if it is a confirmation key, step g is performed;

(Step c) checking the lock flag, if the lock flag is set, setting the status flag to the first preset value, performing step 1; if the lock flag is not set, the status flag is set to Two preset values, performing step 1;

(Step d) checking the boot flag, when the boot flag is set, check Check the status identifier, delete a unit data at the end of the corresponding buffer area, display the corresponding number, perform step 1; when the open status is not set, the sleep state;

(Step e) checking the boot flag, when the boot flag is set, checking the status identifier, saving the corresponding data to the corresponding buffer area, and displaying the corresponding number, performing step 1; when the boot flag is not set Hibernation state

(Step f) Check the boot flag,

When the power-on flag is set and the state identifier is a third preset value, it is determined whether the pressed button is continuously pressed for more than a preset duration, and the state identifier is set to The fifth preset value, step 1 is performed, otherwise step 1 is directly executed;

When the power-on flag is set and the status identifier is not the third preset value, check the status identifier, save the corresponding data to the corresponding buffer area, and display the corresponding number, and perform step 1;

When the boot flag is not set, the sleep state;

(Step g) Check the boot flag,

When the power-on flag is set, the status indicator is checked. If the status indicator is the first preset value, step h is performed. If the second preset value is used, step i is performed. The value is performed in step j, and if it is the fifth preset value, step k is performed;

When the boot flag is not set, itA^ sleep state;

(Step h) calculating an unlock code verification code, and determining whether the data in the unlock code data buffer is consistent with the calculated unlock code verification code, and resetting the lock flag to set the status flag to the fifth Preset value, clear the data in the unlock code buffer, perform step 1; otherwise clear the data in the unlock code buffer, return to step c;

(Step i) determining whether the data in the power-on password buffer area is consistent with the power-on password currently stored in the dynamic token, and then setting the status identifier to a third preset value, and clearing the power-on password buffer area Data, perform step 1; otherwise clear the boot The data in the password buffer, set the lock flag, and return to step C;

(Step j) calculating a dynamic password, displaying the content corresponding to the dynamic password, performing step 1;

(Step k) determining whether the data in the new power-on password buffer area meets the preset condition, and replacing the current power-on password currently stored in the dynamic token with the data in the new power-on password buffer area, and clearing the new power-on password The data in the password buffer is set to the third preset value, and step 1 is performed; otherwise, the data in the new power-on password buffer is cleared, and step 1 is performed;

(Step 1) It is judged whether the button flag is detected to be set within a predetermined time, and if yes, return to step A; otherwise, the power-on flag is reset to enter a sleep state.

The method according to claim 11, wherein after the dynamic token detects that the button flag is set, the method further comprises: determining whether the dynamic token has been initialized, and executing step a, Otherwise, the dynamic token detects whether the LCD screen and the button are available according to the type of button pressed.

The method according to claim 11, wherein after the dynamic token determines that the pressed button is the power button, the method further comprises: determining whether the time when the power button is continuously pressed exceeds The preset duration is, then step b is performed, otherwise step d is performed.

The method according to claim 11, wherein the dynamic token is set with the number of available password retries, and when the dynamic token enters a sleep state, the status identifier is restored to a default value. Saving the current number of available password retries and the status of the lock flag, and performing step a when it is re-detected that the button flag is set; Correspondingly in step i:

When it is determined that the data in the power-on password buffer is consistent with the power-on password currently stored in the dynamic token, the method further includes: setting the number of available password retry times to an initial value;

Determining, when the data in the power-on password buffer area is inconsistent with the power-on password currently stored in the dynamic token, specifically: clearing data in the power-on password buffer area, and calculating the number of available password retry times by one, As a result, as the number of currently available password retries, it is determined whether the number of currently available password retries is 0, if yes, the lock flag is set, step 1 is performed, otherwise step 1 is directly executed;

Wherein, in the step d,

When the power-on flag is set, if there is no data in the buffer area, go to step 1;

The checking status identifier, deleting a unit data at the end of the corresponding buffer area, includes: checking a status identifier, if the first preset value is deleted, deleting one unit data at the end of the unlock code buffer; if it is a second preset value or The fourth preset value deletes one unit data at the end of the power-on password buffer area; if it is the fifth preset value, deletes one unit data at the end of the new power-on password buffer area; if it is the sixth preset value, deletes and confirms the new power-on password buffer. a unit of data at the end of the zone; if not, it is not processed;

A unit is represented by a unit data in the desired buffer area, and the unit data is encoded or uncoded;

The checking status identifier, and saving the corresponding data to the corresponding buffer area includes: checking the status identifier, if the first preset value is, saving the corresponding data to the unlock code buffer area; if the second or fourth preset value is, saving the corresponding data Go to the power-on password buffer area; if it is the fifth preset value, save the corresponding data to the new power-on password buffer area; if it is the sixth preset value, save the corresponding data to confirm the new power-on password buffer area; if it is other, it will not be processed. ;

The saving the corresponding data to the corresponding buffer area specifically includes: identifying the status according to the status Determining whether the number of unit data in the corresponding buffer area has exceeded a preset number, and storing the first or last preset number of unit data, otherwise storing all unit data; the displaying the corresponding number specifically includes: Displaying the number corresponding to all the unit data in the data buffer, and displaying the corresponding number as the data plaintext or the symbol "-" or displaying the fixed time data plaintext first and then replacing the data plaintext with the symbol "-", when the state When different preset values of the identifiers correspond to different display modes, the display mode is selected according to the current value of the state identifiers.

The method according to claim 11, wherein the saving the corresponding data to the corresponding buffer area when the status identifier is not the third preset value comprises: saving the corresponding data if the first preset value is To the unlock code buffer area; if it is the second or fourth preset value, save the corresponding data to the power-on password buffer; if it is the fifth preset value, save the corresponding data to the new power-on password buffer; if it is the sixth preset The value will save the corresponding data to confirm the new power-on password buffer; if it is other, it will not be processed.

The method of claim 11, wherein the step g further comprises: performing step m when the status identifier is a fourth preset value, where the step m specifically comprises: determining the Whether the data in the power-on password buffer is consistent with the power-on password currently stored in the dynamic token, and the state identifier is set to a fifth preset value, and the data in the power-on password buffer is cleared, and step 1 is performed. Otherwise, clear the data in the power-on password buffer, and perform step 1;

Correspondingly, when it is determined that the pressed continuous pressed time exceeds the preset duration in step f, the method includes: setting the status identifier to a fourth preset value, and performing step 1.

The method according to claim 11, wherein in the step g The method further includes: performing step n when the status identifier is a sixth preset value, where the step n specifically includes:

Determining whether the data in the confirmation power-on password buffer is consistent with the new power-on password, and replacing the power-on password stored in the current dynamic token with the new power-on password, and setting the status identifier to a third preset. Value, clear the data in the confirmation power-on password buffer, perform step 1; otherwise, clear the data in the confirmation power-on password buffer, set the status identifier to a fifth preset value, and perform step 1;

Correspondingly, when it is determined in step k that the data in the new power-on password buffer area meets a preset condition, the data in the new power-on password buffer area is stored as a new power-on password, and the status identifier is set to Six preset values, clear the data in the new power-on password buffer, and perform step 1.

The method according to claim 11, wherein the step g further comprises: performing step o, wherein the step is performed when the status identifier is a seventh preset value. The method includes: setting the status identifier to a third preset value, and performing step 1; correspondingly, after the calculating the dynamic password in the step j, the method further includes: setting the status identifier to a seventh preset value Determining whether the button identifier is set before the dynamic password is invalid, if yes, returning to step a, otherwise, when the dynamic password is invalid, setting the status identifier to a third preset value, and performing steps 1.

The method according to claim 11, wherein when the dynamic token detects that the button flag is set, the button debounce processing is further included, specifically:

When it is detected that the button is pressed and the time when the button is pressed exceeds the preset time, step a is performed, otherwise the button flag is cleared, the sleep state is entered, and the wait ^^ flag is set.